Nervos Tx Verification

nervos.py

def get_nervos_txn_status(txnid, network='mainnet'):
    if not txnid:
        return None

    if network != 'mainnet': # TODO: network == 'mainnet'
        base_url = 'https://api.explorer.nervos.org/api/v1'
    else:
        base_url = 'https://api.explorer.nervos.org/testnet/api/v1'
    
    explorer_url = f'{base_url}/transactions/{txnid}'
    tip_block_number_url = f'{base_url}/statistics/tip_block_number'

    tx_response = requests.get(
        explorer_url, headers=HEADERS).json()['data']['attributes']

    tx_data = tx_response.json()['data']['attributes']

    if tx_response.status_code == 200:
        tip_block_number = requests.get(
            tip_block_number_url, headers=HEADERS
        ).json()['data']['attributes']['tip_block_number']
        confirmations = tip_block_number - int(tx_data['block_number'])
        output_status = tx_data['display_outputs'][0]['status']

        if (
            confirmations > 0 and
            tx_data['tx_status'] == 'committed' and
            output_status == 'live'
        ):
            return True
        else:
            return False